Manually upgrading Thinkpad Yoga WiFi card

Question

Hey all,
I bought a TPY from Newegg, which shipped with the Intel Wireless-N 7260. The laptop finds and connects to my home network fine, but can't find my work WiFi network at all. I've tried a few different drivers to no avail. Would buying and installing the dual band version of this card, or getting the Dual Band Wireless-AC 7260 make a difference? 
And if so, can someone double check that this is the right part? http://www.newegg.com/Product/Product.aspx?Item=N82E16833106190
I know there's a whitelist in the BIOS, but I assume that if other models ship with the AC card then I can swap it in.
The model type number is 20CD-0033US S/N **********
Thanks in advance.
Moderator note: serial number removed for member's protection.
Solved!
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Answer 1

Hello and welcome,
The whitelist requires the correct model and a Lenovo FRU number.  That NewEgg card looks to be generic Intel and won't pass the whitelist.
The  FRU's are available in the TP Yoga part list:  http://download.lenovo.com/parts/ThinkPad/yoga_fru_bom_20131107.pdf
I'm having a hard time figuring out which one is dual-band.  Hopefully someone else here on the boards can provide info.  Price and availability is going to be an issue
Before you go down that road, have you verified that your work wifi is 5GHz-only, and that there isn't some other problem?
Z.
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